TROUBLESHOOTING
41
13. TROUBLESHOOTING
SYMPTOMS
PROBLEM
SOLUTION
Slow response /
excessive drift
Dirty pH electrode
Soak the electrode tip in
MA9016
for 30 minutes, then
follow the cleaning procedure
Reading fluctuates
up and down (noise)
Clogged/Dirty junction.
Low electrolyte level
(refillable electrodes only)
Clean the electrode.
Refill with fresh electrolyte
MA9012
Full scale value
displayed blinking
Reading out of range
Check if the sample is
within measurable range;
check electrolyte level and
general electrode status
mV scale out of range
Dry membrane or dry junction
Soak electrode in
MA9015
storage solution for at least
30 minutes
°C or °F displayed blinking Out of order temperature probe
Replace temperature probe
Meter does not work with
temperature probe
Broken temperature probe
Replace temperature probe
Meter fails to calibrate or
gives faulty readings
Broken pH electrode
Replace electrode
“WRONG CAL” is displayed
during pH calibration
Wrong or contaminated buffer
Check that buffer solution is
correct and fresh
“Internal Er X”
Internal error
Restart the meter.
If error persists, contact
Milwaukee Technical Service.
"CAL ERROR"
Loaded default
pH calibration values
Perform pH calibration